修改下载列表倒排代码
Merge branch 'master' of https://github.com/jfwang/MapReduceAssignment into jfwang-master
Merge branch 'jfwang-master'
Merge branch 'master' of https://github.com/wangzk/MapReduceAssignment

Conflicts:
	GetZijingBTInfo/src/TorrentList.java